In this paper, H-1 NMR of DMF-H2O... Y Lei,HR Li,LH Zhu,... 被引量: 13发表: 2002年 阴离子功能化丙烯基咪唑离子液体对纤维素的溶解性能研究 的加入对离子液体溶解纤维素性能的影响,并通过1H NMR核磁和电导两种手段研究了可能的影响机理.同时,以DMSO为代表性极性非质子溶剂,研究了阴离子的结构对...
l 溶解性:溶于DMSO,DMF,DCM,溶于水. l 结构式: Silane-PEG-OH 凯新生物 l 分子量:1000,2000,3400,5000,10000. l 分析:COA、NMR、MALDI-TOF 产品说明: 凯新生物的硅烷聚乙二醇羟基(Silane-PEG-OH) 可以用来修饰蛋白质、多肽和其他带有活性基团的材料。 聚乙二醇可以增加溶解度和稳定性。减少多肽和蛋白质...
Investigation of the Reaction of Sulfur with Sodium Nitrite in DMF, DMSO, and HMPA The mechanism of the title reaction has been elucidated by VIS/UV, IR, 15 N NMR, and ESR spectrometric measurements, gas analysis, and chromatography. The course of the complex reaction and the great number ...
NMR法研究Na+在二元混合溶剂中的溶剂化(Ⅱ) 本文测定了NaBPh4在CH3OH-CH3COCH3,CH3OH-CH3CN,DMSO-DMF,DMSO-HCONH2混合溶剂体系中23Na+的化学位移随溶剂组成的变化规律.利用Covington模型计算了四个混合溶剂体系... 黄忆宁,李芝芬,刘瑞麟 - 《物理化学学报》 被引量: 0发表: 1988年 ...
The downfield shifts of the acidic proton in their 1H NMR spectra are consistent with its expected high acidity. The molecular structures of H(DMSO)2[P(1,2-O2C6H4)3] and H(DMF)2[P(1,2-O2C6H4)3] reveal that the protons in each are O-bound by either DMSO (×2) or DMF (×...
Synthesis and characterization of high molecular weight, highly soluble polypyrrole in organic solvents Polypyrrole with high solubility (Ppy-DEHS, solubility; 3 similar to 11wt%) in organic solvents (NMP DMSO, DMF, m-cresol, THF, acetic acid, chloroform, dic... EJ Oh,KS Jang - 《Synthetic ...
598鈭楥 顏 13C NMR spectra of the ligand complex, 鈭掆垝鈭掆垝鈭掆啋ZnO,鈭 OCH CH CH CH饊€○€€ 2 2 2 3饊€别€€?鈭扥CH3,鈭?L [Zn(OClO) L]HOCH CH CH CH complex, and (2) 3 2 2 2 2 3 [ZnL (OCH CH CH CH ) ]complexrecordedinDMSO- 2 2 2 2 3 2 Molecular...
of N,N-dimethylformamide (DMF), dimethyl sulfoxide (DMSO). or 2-propanol (i-PrOH) to give the six-coordinate monomeric complexes Ti(O-i-Pr)Cl-3(PhCHO)L (L = DMF (3), DMSO (4), or i-PrOH (5)). In the reaction of 2 with i-PrOH, the formation of the simple adduct 5 ...
of N, N-dimethylformamide (DMF), dimethyl sulfoxide (DMSO), or 2-propanol (i-PrOH) to give the six-coordinate monomeric complexes Ti(O-i-Pr)Cl 3(PhCHO)L (L=DMF ( 3), DMSO ( 4), or i-PrOH ( 5)). In the reaction of 2 with i-PrOH, the formation of the simple adduct 5...
The structure of nitroguanidine was investigated by the application of 15 N, 1 H and 13 C NMR spectroscopy of a fully 15 N-labeled sample in DMSO- d 6 and... S Bulusu,RL Dudley,JR Autera - 《Magnetic Resonance in Chemistry》 被引量: 14发表: 1987年 ...